DockerCLI/cli/command/context.go

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package command
import (
"errors"
"github.com/docker/cli/cli/context/store"
)
// DockerContext is a typed representation of what we put in Context metadata
type DockerContext struct {
Description string `json:",omitempty"`
StackOrchestrator Orchestrator `json:",omitempty"`
}
// GetDockerContext extracts metadata from stored context metadata
func GetDockerContext(storeMetadata store.ContextMetadata) (DockerContext, error) {
if storeMetadata.Metadata == nil {
// can happen if we save endpoints before assigning a context metadata
// it is totally valid, and we should return a default initialized value
return DockerContext{}, nil
}
res, ok := storeMetadata.Metadata.(DockerContext)
if !ok {
return DockerContext{}, errors.New("context metadata is not a valid DockerContext")
}
return res, nil
}